Balance the equation below. Use it to answer the following questions.
Show all work!
_ Al + _ O2 _ Al2O3
How many moles of O2 are required to react with 8.5 moles of Al?
How many moles of Al2O3 a
NUCLEAR PHYSICS WORKSHEET II
Half Life Problems
A sample of Pa-234 has a half-life of 6.75 hours. What fraction of the sample is left after
20.25 hours have passed?
An isotope has a half-life of 5.0 days. What fraction
Moles Particles Conversions WS
Use the factor label method to convert the following on your own sheet of paper.
Circle your answers.
Moles to Particles:
Particles to Moles:
1.8 moles to particles
2.7 x 1020 atoms to moles
5.3 moles to at
Moles Part 2 Review
What is percent composition?
What is the percent composition of the elements in CaCl2?
What is the percent of oxygen in phosphoric acid, H3PO4?
What is the percent of phosphorus in barium phosp